CN205596262U - But 10100M LAN distribution frame of new lightning protection - Google Patents
But 10100M LAN distribution frame of new lightning protection Download PDFInfo
- Publication number
- CN205596262U CN205596262U CN201520936270.3U CN201520936270U CN205596262U CN 205596262 U CN205596262 U CN 205596262U CN 201520936270 U CN201520936270 U CN 201520936270U CN 205596262 U CN205596262 U CN 205596262U
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- China
- Prior art keywords
- heart
- heart yearns
- distribution frame
- idle
- lightning protection
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Abstract
The utility model provides a but 10100M LAN distribution frame of new lightning protection, includes a plurality of front end interfaces, multiunit electrical connection line and a plurality of back end interface, and a front end interface corresponds a set of electrical connection line to correspond a back end interface, each electrical connection line of group has 8 heart yearns, there are 4 heart yearn directly groundeds in the electrical connection line 8 heart yearn. To the 10100M LAN, 8 total cores on the root web winding thread correspondingly, also have 8 heart yearns on the distribution frame, and nevertheless only 4 heart yearns are used for communication, and 4 other heart yearns are idle completely, the utility model discloses with 4 idle on distribution frame heart yearn directly groundeds, when the network line increased because of thunder and lightning induced voltage, 4 heart yearns flow direction ground idle and ground connection can be followed to the electric current to voltage in the whole network line in other heart yearns also can reduce rapidly, and protection distribution frame both ends equipment is not damaged by the thunder and lightning. The normal during operation of network line, 4 idle heart yearn directly groundeds are to not influence of the normal communication of network line.
Description
Technical field
This utility model relates to a kind of lightning protection device, more particularly, to a kind of new can the 10/100M LAN of lightning protection
Distributing frame, belongs to network's thunder technical field.
Background technology
Shocking preventing technology is divided into direct lightning strike protection and induced lightening to protect two big categories, and present microelectronic device is caused by induced lightening
The probability damaged is significantly larger than direct lightning strike.Network's thunder belongs to induced lightening protection category, during direct lightning strike is released, as long as having
The place of circuit all can form transient voltage, thus the equipment at circuit two ends is formed damage, so, network signal lightning protection device is protected
Protector is directional, and the lightning current road direction along the line two ends impact that netting twine senses, so needing network terminal device to be required to
Do lightning protection to process.
Distributing frame purposes is mainly in order to the modular equipment being managed front-end information point at local side.The letter of front end
Initially enter distributing frame after between breath point cable (surpassing 5 classes or 6 class lines) access arrangement, line is beaten in the module of distributing frame, so
Afterwards with wire jumper (RJ45 interface) connection wiring frame and switch.Distributing frame is most important assembly in network management subsystem, rises
To the effect of network synthesis unified management, distributing frame front end connects subscriber equipment, and rear end connects switch, so distributing frame port
Lightning protection particularly significant.
Major part distributing frame does not has lightning protection facility, small part to have lightning protection facility at present, and its shocking preventing technology scheme there is also
The biggest deficiency, is mainly manifested in: for terrible relatively low residual voltage level, current distributing frame network's thunder device uses multistage anti-mostly
Thunder components and parts combine, and use energy coordination device to carry out decoupling, it is ensured that rear class equipment is the most powerful in the middle of multistage lightning protection components and parts
Lightning current or overvoltage damage, but this multistage lightning protection component combination lightning protection device owing to energy coordination devices in series is in master
In loop, present bigger impedance, in high frequency, present bigger electric capacity due to rear class lightning protection component again, thus cause by
The series connection of this network's thunder device is received and can be caused insertion loss increase, signal attenuation in main circuit, affects the transmission of network signal,
Therefore, it is necessary to prior art is improved.
For 10/100M LAN, grid line has 8 cores, correspondingly, distributing frame also has 8 heart yearns, but only 4 heart yearns
For communicating, other 4 cores are initially to reserve for telephone wire, but the actually current netting twine almost without any connection LAN is same
Time be used for connecting phone, say, that other 4 heart yearns be entirely free time.
Summary of the invention
The technical problems to be solved in the utility model is: major part distributing frame does not has lightning protection facility, small part to have anti-at present
Thunder facility, its shocking preventing technology scheme there is also the biggest deficiency, is mainly manifested in: for terrible relatively low residual voltage level, mostly
Use multistage lightning protection components and parts to combine, owing to energy coordination devices in series is in major loop, causes impedance relatively big, thus cause letter
Number decay, affect network signal transmit.For deficiency of the prior art, this utility model provides a kind of does not has parasitic capacitance
Lightning protection distributing frame.
This utility model adopts the following technical scheme that for solving technical problem
A kind of new can the 10/100M LAN distributing frame of lightning protection, including multiple front end interfaces, many group electrical interconnections with
And multiple back end interface, a corresponding one group of electrical interconnection of front end interface, and a corresponding back end interface, each group of electrical connection
Circuit has 8 heart yearns, it is characterized in that, has 4 heart yearns to be directly grounded in described electrical interconnection 8 heart yearn.
The utility model has the advantage of: for 10/100M LAN, a grid line has 8 cores, correspondingly, distribution
Also having 8 heart yearns on frame, but only 4 heart yearns are used for communicating, other 4 heart yearns are entirely the free time, and this utility model is by distributing frame
4 idle heart yearns are directly grounded, and when grid line increases because of lightning induced voltage, electric current can be from free time 4 heart yearn streams of ground connection
Earthward, thus in whole grid line, the voltage in other heart yearn also can reduce rapidly, and protection distributing frame terminal device is not by thunder
Electricity damages.When grid line normally works, 4 idle heart yearns are directly grounded and not affect grid line proper communication.
Of the present utility model being also advantageous in that, the distributing frame lightning protection structure provided is very simple, and production cost is relatively low.
Accompanying drawing explanation
Fig. 1 is the circuit structure diagram of common 10/100M LAN distributing frame；In figure, 1,3,5 ... 47 be 24 before terminate
Mouthful, 2,4,6 ... 48 is 24 back end interfaces, and centre is electrical interconnection；
Fig. 2 be described in the utility model a kind of new can the circuit structure diagram of 10/100M LAN distributing frame of lightning protection；Figure
In, 1,3,5 ... 47 is 24 front end interfaces, 2,4,6 ... 48 is 24 back end interfaces, and centre is electrical interconnection；
Detailed description of the invention
This utility model is expanded on further below in conjunction with the accompanying drawings with detailed description of the invention.
As can be seen from Figure 2 this utility model relate to a kind of new can the 10/100M LAN distributing frame of lightning protection, described office
Territory net distributing frame includes multiple front end interface, many group electrical interconnections and multiple back end interface, a front end interface correspondence one
Group electrical interconnection, and a corresponding back end interface, each group of electrical interconnection has 8 heart yearns, in described electrical interconnection 8 heart yearn
4 heart yearns are had to be directly grounded.
For 10/100M LAN, a grid line has 8 cores, correspondingly, distributing frame also has 8 heart yearns, but only 4
Heart yearn is used for communicating, and other 4 heart yearns are entirely the free time, and 4 heart yearns idle on distributing frame are directly grounded by this utility model, when
Grid line because of lightning induced voltage increase time, electric current can flow to ground from 4 heart yearns of free time ground connection, thus in whole grid line
Voltage in other heart yearn also can reduce rapidly, and protection distributing frame terminal device is not damaged by thunder and lightning.When grid line normally works,
4 idle heart yearns are directly grounded and not affect grid line proper communication.
Embodiment:
As in figure 2 it is shown, as a example by 24 mouthfuls of distributing frames, distributing frame has 24 front end interfaces, label is 1,3,5 respectively ...
.47, correspondingly, having 24 back end interfaces, label is 2,4,6 respectively ... .48, has between each front end interface and back end interface
1 group of connection line, each group of connection line has 8 heart yearns, 8 heart yearn order are followed successively by 1,2,3,4,5,6,7,8(figure is not marked
Go out), this utility model by 4 idle heart yearns, i.e. 4,5,7,8 heart yearns be directly grounded, increase because of lightning induced voltage when grid line
Time, electric current can flow to ground from 4 heart yearns of free time ground connection, thus in whole grid line, the voltage in other heart yearn also can be rapid
Reduce, protect distributing frame terminal device.When grid line normally works, 4 idle heart yearns are directly grounded grid line proper communication
Not impact.
This utility model can also be used for the lightning protection of other kinds of distributing frame, all changes without departing from this utility model spirit
Shape, is regarded as within protection domain of the present utility model.
Claims (1)
1. new can the 10/100M LAN distributing frame of lightning protection, including multiple front end interfaces, many group electrical interconnections and
Multiple back end interfaces, a corresponding one group of electrical interconnection of front end interface, and a corresponding back end interface, each group of electric connection line
There are 8 heart yearns on road, it is characterized in that, has 4 heart yearns to be directly grounded in described electrical interconnection 8 heart yearn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520936270.3U CN205596262U (en) | 2015-11-23 | 2015-11-23 | But 10100M LAN distribution frame of new lightning protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520936270.3U CN205596262U (en) | 2015-11-23 | 2015-11-23 | But 10100M LAN distribution frame of new lightning protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205596262U true CN205596262U (en) | 2016-09-21 |
Family
ID=56926550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520936270.3U Expired - Fee Related CN205596262U (en) | 2015-11-23 | 2015-11-23 | But 10100M LAN distribution frame of new lightning protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205596262U (en) |
-
2015
- 2015-11-23 CN CN201520936270.3U patent/CN205596262U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160921 Termination date: 20191123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |